Decline in migratory fish populations prompts fight for protection
GS3अर्थव्यवस्था · विज्ञान-तकनीक · पर्यावरण · सुरक्षा· Biotechnology & health research· Prelims + Mains·
चर्चा में क्यों
The UN has prioritized 30 flagship fish species, including the golden mahseer and goonch catfish, for global conservation due to an 81% decline in freshwater migratory fish populations over the last half century.
पृष्ठभूमि
A study by international scientists indicates that overfishing and habitat loss are the primary threats to freshwater migratory fish. The IUCN has assessed over 15,000 species of freshwater migratory fish, identifying 325 that require inclusion in a global monitoring agreement.
प्रीलिम्स के लिए तथ्य
- पर्यावरणGolden mahseer and goonch catfish are among the 30 flagship fish species prioritized by the UN for global conservation.
- तथ्यFreshwater migratory fish populations have dropped by an estimated 81% over the last half century.
- संस्थाIUCN (International Union for the Conservation of Nature) has assessed more than 15,000 species of freshwater migratory fish.
- अंतर्राष्ट्रीय संगठनThe UN proposes adding 30 priority fish species to the Convention on the Conservation of Migratory Species in three years.
मेन्स के लिए
Q. Discuss the ecological and economic implications of declining migratory fish populations and evaluate the effectiveness of international conservation frameworks in mitigating habitat loss.
उत्तर के आयाम
- Biodiversity loss: Irreversible collapse of aquatic food webs due to overfishing and habitat degradation
- Regulatory gap: Limitations of current monitoring frameworks in addressing transboundary migratory species
- Economic trade-off: Balancing artisanal and commercial fishing livelihoods with long-term ecological sustainability
कीवर्ड: Biodiversity conservation · Migratory species · Habitat degradation · Overfishing · Transboundary governance
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